GRM studio vs BLEASS Motion FX
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
GRM studio
This music creation app offers advanced sound manipulation tools for musicians and sound designers. Explore and edit audio files through direct waveform manipulation and multiple playback processes.
- Real-time sound transformation simulation
- Direct waveform exploration
- Virtual editing and montage
- Multiple playback processes
- Granular synthesis
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GRM studio est une application de création musicale . Elle permet de puissantes transformations sonores par la manipulation directe de représentations audionumériques et l’expérimentation de processus de lectures multiples sur des documents sonores. Cette nouvelle lutherie est mise à disposition grâce au soutien du programme Investissements d’Avenir (PIA-SINÉ). Elle complète la collection de ressources de l’INA-GRM disponible sur Éduthèque « Écouter, voir, comprendre les musiques électroacoustiques et les technologies de création sonore » . Pionnier des musiques concrètes, électroacoustiques, acousmatiques, le Groupe de Recherches Musicales (GRM) développe depuis 1958, des dispositifs créatifs de traitement du son à l’usage des musiciens, des compositeurs, des designers sonores Fonctionnalités : - Simulation temps réel des principales transformations du son . Transpositions, time streching, délais, boucles mobiles, synthèse granulaire,etc. - Toutes ces opérations sont faites uniquement en combinant des opérations de lecture d'un fichier sonore. Lecture simple contrôlée en sens et vitesse, déplacement de boucles mobiles comportant plusieurs curseurs de lecture. - Exploration directe de la forme d'onde à différentes échelles - Édition et Montage virtuel
BLEASS Motion FX
This app provides a creative workflow for sound design with 11 distinct effects. Dynamically modulate these effects using a versatile motion sequencer to explore new sonic territories. Load multiple instances for complex sound manipulation.
- 11 unique audio effects
- Versatile motion sequencer
- Dynamic parameter modulation
- Load multiple instances
- Cross-platform availability (iOS, Windows, macOS)
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BLEASS Motion FX offers a new and creative workflow to effects sound design. Choose between 11 different effects and dynamically modulate it thanks to a highly versatile motion sequencer. Load as many instances of Motion FX as you want and unveil new sonic territories! BLEASS Motion FX contains 11 different effects which you can modulate precisely thanks to an intuitive and comprehensive sequencer. The 11 effects included are: - Low Pass Filter - High Pass Filter - Band Pass Filter - Volume - Pan - Pitch Shifter - Frequency Shifter - Ring Modulator - Warmth - Bit Crusher - Delay Each effect has a parameter automated by the sequencer and can have one or more secondary parameters. Pick an effect and then modulate it dynamically thanks to the motion sequencer. When switching effects, the motion sequencer keeps its state to invite you to new sound design ideas! BLEASS Motion FX is also available for Windows & macOS More detailed information are available on https://www.bleass.com/motionfx/
Screenshots
Verdict
The clearest difference is price: GRM studio at Free against BLEASS Motion FX's $7.99. GRM studio also leads on update cadence (weekly vs every 54 months) and iOS requirement (9.3 vs 11.0). BLEASS Motion FX's advantage is rating (4.8 vs 4.0) and ratings volume (13 vs 1). On review sentiment, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
GRM studio is free to download; BLEASS Motion FX costs $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.
BLEASS Motion FX holds the better App Store score, 4.8 against 4.0. That said, the two scores are not equally well evidenced: BLEASS Motion FX has 13 ratings behind it against 1, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.
GRM studio ships an update weekly, BLEASS Motion FX every 54 months. The most recent releases landed on October 2, 2026 and October 7, 2026 respectively.
| Parameter | GRM studio | BLEASS Motion FX |
|---|---|---|
| Price | Free — better | $7.99 |
| Rating | 4.0 (1 ratings) | 4.8 (13 ratings) — better |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 1 | 13 — better |
| Update frequency | Weekly — better | Every 54 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 9.3 — better | 11.0 |
| Further details — not scored | ||
| Size | 35 MB | 28 MB |
| Age rating | 4+ | 4+ |
| Developer | Institut National de l'Audiovisuel | BLEASS |
Customer experience
GRM studio
BLEASS Motion FX
In-app purchases
GRM studio
No in-app purchases
BLEASS Motion FX
No in-app purchases
